Can you elaborate on how bad was it?
Or are there any videos of your matches?
Unfortunately, my match wasn't on stream, so there's no videos.
First match we agreed to Smashville. Just like you saw in the Tweek match, he went straight for the ledge and began his shenanigans.
I'm really not familiar with a lot of customs, so the fact that the balloons actually have a random ascending trajectory was something extremely difficult to fight on the fly. Coupled with the fact that the balloons actually hid in the stage itself before popping up, it cut off a lot of options.
Trip sapling was placed right in front of the ledge, so you had no space to stand.
Pretty much all of my projectiles were pocketed.
The only real advances I had were when I'd go offstage to try and Plant Barrier-stool, or throw out an aerial, but even when my stuff would connect he could just mash B immediately to shoot upwards.
I wasn't rushing anything either, by the way. I played very patiently and thought about my options. The only thing I didn't try was Skull Barrier, which at the very least would've forced him off the ledge / stalemate.
Oh, and he banned Castle Siege and Delphino. Probably because you can clearly see the balloons on Delphino, and the transitions are not in that strategy's favor on Castle Siege.